--- a/configure.ac
+++ b/configure.ac
@@ -93,7 +93,7 @@
 AC_CHECK_LIB([ogg],[ogg_stream_init],,AC_MSG_ERROR([Can't find libogg]))
 AC_CHECK_LIB([theora],[theora_encode_YUVin],,
              AC_MSG_ERROR([Can't find libtheora]))
-AC_CHECK_LIB([pthread],[pthread_mutex_lock],,
+AC_CHECK_LIB([c],[pthread_mutex_lock],,
              AC_MSG_ERROR([Can't find libpthread]))
 
 if test x$jack = xtrue ; then